The premelting type refining slag method of use

The premelting type refining slag (calcium aluminates, desulfurization agent) is a kind of compound deoxidization, desulfurization materials, is a steel enterprise steelmaking refining process will use additives. The following is the product to use:

1, the products used in the pipeline steel such as X70, addition amount of 10-13 Kg/T steel, and may, according to former sulphur (former sulfur is less than 70 PPm) and ladle into LF furnace slag location thick increase or decrease;

2, the steel electric furnace with this product 6 Kg/T around (LF slag according to determine the lime amount), in order to improve the alkalinity;

3 in refining each stage, should pay full attention to blow the slag, stir in fluorine uniform composition, uniform temperature, and other aspects of the role;

4, shall at any time! Observe, slag adjustment according to the condition of deoxidizing dose and refining synthesis slag;

5, when the continuous casting, should guarantee the pure stir or calm not less than 5 minutes time;

6 and join a ladle when using, but according to the specific situation in resources.

In addition, many other products, and on the basis of my company combining domestic and foreign research and production technology, make the premelting type refining slag in the refining process revised the past rely on high alkali materials, slag just mix out, the desulfurization of outside the furnace traditional process, so as to improve the quality of steel products internal use and performance.